| Stepper Motor Controller…. (24 Pins)
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LS7290, LS7290-S, LS7290-TS
Last Update: 07/20/11 |
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Controls Bipolar and Unipolar Stepper Motors |
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Full, 1/2 step modes selection |
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Direct interface to L298 for BiPolar motors |
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Enable, Step, Direction and Reset control inputs |
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PWM chopper circuit for step and torque control |
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Two peak current sense comparators with external reference input |
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Programmable interstep blanking delay |
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3 to 5.5 volt operation |
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| Micro-Stepper Motor Controller…. (24 Pins; 28 Pins)
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LS8292, LS8292-S, LS8292-TS
LS8293, LS8293-S, LS8293-TS
Last Update: 06/15/12 |
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Controls Bipolar and Unipolar Stepper Motors |
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Full, 1/2, 1/4, 1/8, 1/16 and 1/32 Stepping modes selection |
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PWM outputs for external H-bridge drivers |
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Dual precision DAC references for PWM Sense Comparators |
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Fast, Slow, Single-Mixed and Dual-Mixed Decay modes selection |
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Programmable delay for sense input blanking |
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Programmable delay for the Mixed-Decay cycles |
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Holding Torque at reduced power for idling motor |
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Auto-switch to Holding Torque with programmable delay from idle state |
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Inputs for Step, Direction, Reset to home and Disable PWM |
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IOs for external clock or built-in oscillator |
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Supply current < 400uA |
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Supply voltage: 4.5 to 5.5V |
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| Stepper Motor Controller…. (20 Pins; 20 Pins)
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LS8297, LS8297-S, LS8297-TS
LS8297CT, LS8297CT-S, LS8297CT-TS
Last Update: 04/20/09 |
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Low cost, low current, pin-compatible replacement for L297.
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Torque Ripple Compensated half-steps – LS8297CT |
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Controls two-phase Bipolar and four-phase Unipolar motors |
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Interface to four AND Gates driving four N-Channel MOSFET's for Unipolar motors |
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Normal/wave drive |
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PWM chopper circuit for current control |
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Two over current sense comparators with external references input |
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All inputs and outputs TTL/CMOS compatible (TTL for 5V operation) |
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Supply current < 400uA |
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Supply voltage: 4.75 to 7V |
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| Stepper Motor Controller…. (24 Pins)
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LS8397, LS8397-S, LS8397-TS
Last Update: 04/21/09 |
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Low cost, low current, pin-compatible replacement for L297.
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L297 operating modes with added functions:
- Selectable Torque Ripple Compensation MODE
- Selectable Holding Torque MODE
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Other features same as LS8297 |
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